[PATCH] kbuild: signed/unsigned char fix for make menuconfig

Quiet some silly warnings.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/lxdialog/dialog.h b/scripts/lxdialog/dialog.h
index c571548..eb63e1b 100644
--- a/scripts/lxdialog/dialog.h
+++ b/scripts/lxdialog/dialog.h
@@ -163,7 +163,7 @@
 int dialog_checklist (const char *title, const char *prompt, int height,
 		int width, int list_height, int item_no,
 		const char * const * items, int flag);
-extern unsigned char dialog_input_result[];
+extern char dialog_input_result[];
 int dialog_inputbox (const char *title, const char *prompt, int height,
 		int width, const char *init);